Adjusting method and device for water supply temperature of freeze water of hospital air-conditioning control room

Abstract

The invention relates to an adjusting method and device for water supply temperature of freeze water of a hospital air-conditioning control room. The method comprises the steps that when a refrigeration main engine of the air-conditioning control room normally runs, first opening degrees of all electric valves in an air conditioner tail end combined type air cabinet at the Kth moment are obtained,and according to the first opening degrees, the electric valve number N1 larger than the threshold value is determined; if the electric valve number N1 meets the first preset condition, according tothe set frequency, the first running frequency of a chilled water pump is reduced; if the electric valve number N1 meets the second preset condition, the first running frequency of the chilled water pump is kept; and if the electric valve number N1 meets the third preset condition, according to the set frequency, the first running frequency of the chilled water pump is increased. Through real-timemonitoring of the opening degrees of the electric valves in the air conditioner tail end combined type air cabinet, the running frequency of the chilled water pump is adjusted in real time, in combination with the real-time temperature adjusting of the freeze water, the aim of effectively adjusting the water supply temperature of the freeze water is achieved, and the refrigerating and cold supplyenergy efficiency of the freeze water of the hospital air-conditioning control room is improved.

Description

technical field [0001] The invention relates to the field of air-conditioning machine rooms, and more specifically relates to a method and device for regulating the temperature of chilled water supply in a hospital air-conditioning machine room. Background technique [0002] The chilled water supply temperature of the cooling host in the traditional central air-conditioning system usually adopts a fixed value setting method, that is, the chilled water supply temperature is set in advance before the cooling host starts running, and when the cooling host starts running, it is set at this value. Fixed supply water temperature for cooling. Although this method is simple to operate, the energy efficiency of the cooling host is relatively low. [0003] The above temperature setting method is for some specific buildings, such as hospitals, because the hospital is in the partial load interval of the cooling load most of the time in a year, so if the above method is adopted, the ene...

AI Technical Summary

Problems solved by technology

Although this method is simple to operate, it cannot cool the host and the energy efficiency is relatively low

[0003] The above temperature setting method is for some specific buildings, such as hospitals, because the hospital is in the partial load interval of the cooling load most of the time in a year, so if the above method is adopted, the energy efficiency of the cooling host in the partial load interval cannot be effectively improved. On the contrary, it may also reduce the energy efficiency of the cooling host

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